<template>
  <div class="login-bg">
    <el-scrollbar>
      <div class="screen-height">
        <div class="login-content">
          <div class="left-content"></div>
          <el-card class="login-box">
            <el-image src="./logo.png"></el-image>
            <h4 class="m-t-6">欢迎登录{{ title }}</h4>
            <el-form class="m-t-6" ref="loginRef" :model="loginForm" :rules="loginRules">
              <el-form-item v-if="tenantEnabled" prop="tenantId">
                <el-select v-model="loginForm.tenantId" filterable style="width: 100%">
                  <el-option v-for="item in tenantList" :key="item.tenantId" :label="item.companyName" :value="item.tenantId"></el-option>
                  <template #prefix><svg-icon icon-class="company" /></template>
                </el-select>
              </el-form-item>
              <el-form-item prop="username">
                <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" placeholder="请输入账号">
                  <template #prefix><svg-icon icon-class="user" /></template>
                </el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input
                  v-model="loginForm.password"
                  type="password"
                  show-password
                  size="large"
                  auto-complete="off"
                  placeholder="请输入密码"
                  @keyup.enter="handleLogin"
                >
                  <template #prefix><svg-icon icon-class="password" /></template>
                </el-input>
              </el-form-item>
              <el-form-item v-if="captchaEnabled" prop="code">
                <el-input
                  v-model="loginForm.code"
                  size="large"
                  auto-complete="off"
                  :placeholder="proxy.$t('login.code')"
                  style="width: 63%"
                  @keyup.enter="handleLogin"
                >
                  <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
                </el-input>
                <div class="login-code">
                  <img :src="codeUrl" class="login-code-img" @click="getCode" />
                </div>
              </el-form-item>
              <el-form-item style="text-align: center">
                <el-button :loading="loading" style="width: 100%; margin-top: 16px" size="large" type="primary" @click.prevent="handleLogin">
                  <span v-if="!loading">登录</span>
                  <span v-else>登录中...</span>
                </el-button>
                <div class="flex-center-between" style="flex: 1; margin-top: 8px">
                  <el-button type="info" link @click.stop="bindMFA"> MFA加密登录</el-button>
                  <el-button type="info" link @click="goResetPassword">忘记密码</el-button>
                </div>
              </el-form-item>
            </el-form>
            <div class="font-extraSmall m-t-16 flex-center justify-center text-center">
              <span>没有账号吗&nbsp;</span>
              <el-link type="primary" @click="userRegister" :underline="false" class="!text-3"> 注册新账号 </el-link>
            </div>
          </el-card>
        </div>
      </div>
    </el-scrollbar>
    <el-affix position="bottom" :offset="20">
      <div class="text-center">
        <span class="font-extraSmall"> Copyright © 2025 x机械游戏大显身手 </span>
      </div>
    </el-affix>
  </div>
</template>

<script setup lang="ts">
import { getCodeImg, getTenantList } from '@/api/login';
import { authBinding } from '@/api/system/social/auth';
import { useUserStore } from '@/store/modules/user';
import { LoginData, TenantVO } from '@/api/types';
import { to } from 'await-to-js';
import { HttpStatus } from '@/enums/RespEnum';
import { useI18n } from 'vue-i18n';

const { proxy } = getCurrentInstance() as ComponentInternalInstance;

const title = import.meta.env.VITE_APP_TITLE;
const userStore = useUserStore();
const router = useRouter();
const { t } = useI18n();

const loginForm = ref<LoginData>({
  tenantId: '000000',
  username: 'admin',
  password: 'a12345',
  rememberMe: false,
  code: '',
  uuid: ''
} as LoginData);

const loginRules: ElFormRules = {
  tenantId: [{ required: true, trigger: 'blur', message: t('login.rule.tenantId.required') }],
  username: [{ required: true, trigger: 'blur', message: t('login.rule.username.required') }],
  password: [{ required: true, trigger: 'blur', message: t('login.rule.password.required') }],
  code: [{ required: true, trigger: 'change', message: t('login.rule.code.required') }]
};

const codeUrl = ref('');
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 租户开关
const tenantEnabled = ref(true);

// 注册开关
const register = ref(false);
const redirect = ref('/');
const loginRef = ref<ElFormInstance>();
// 租户列表
const tenantList = ref<TenantVO[]>([]);

watch(
  () => router.currentRoute.value,
  (newRoute: any) => {
    redirect.value = newRoute.query && newRoute.query.redirect && decodeURIComponent(newRoute.query.redirect);
  },
  { immediate: true }
);

const handleLogin = () => {
  loginRef.value?.validate(async (valid: boolean, fields: any) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 localStorage 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        localStorage.setItem('tenantId', String(loginForm.value.tenantId));
        localStorage.setItem('username', String(loginForm.value.username));
        localStorage.setItem('password', String(loginForm.value.password));
        localStorage.setItem('rememberMe', String(loginForm.value.rememberMe));
      } else {
        // 否则移除
        localStorage.removeItem('tenantId');
        localStorage.removeItem('username');
        localStorage.removeItem('password');
        localStorage.removeItem('rememberMe');
      }
      // 调用action的登录方法
      const [err] = await to(userStore.login(loginForm.value));
      if (!err) {
        const redirectUrl = redirect.value || '/';
        await router.push(redirectUrl);
        loading.value = false;
      } else {
        loading.value = false;
        // 重新获取验证码
        if (captchaEnabled.value) {
          await getCode();
        }
      }
    } else {
      console.log('error submit!', fields);
    }
  });
};

/**
 * 获取验证码
 */
const getCode = async () => {
  const res = await getCodeImg();
  const { data } = res;
  captchaEnabled.value = data.captchaEnabled === undefined ? true : data.captchaEnabled;
  if (captchaEnabled.value) {
    codeUrl.value = 'data:image/gif;base64,' + data.img;
    loginForm.value.uuid = data.uuid;
  }
};

const getLoginData = () => {
  const tenantId = localStorage.getItem('tenantId');
  const username = localStorage.getItem('username');
  const password = localStorage.getItem('password');
  const rememberMe = localStorage.getItem('rememberMe');
  loginForm.value = {
    tenantId: tenantId === null ? String(loginForm.value.tenantId) : tenantId,
    username: username === null ? String(loginForm.value.username) : username,
    password: password === null ? String(loginForm.value.password) : String(password),
    rememberMe: rememberMe === null ? false : Boolean(rememberMe)
  } as LoginData;
};

/**
 * 获取租户列表
 */
const initTenantList = async () => {
  const { data } = await getTenantList(false);
  tenantEnabled.value = data.tenantEnabled === undefined ? true : data.tenantEnabled;
  if (tenantEnabled.value) {
    tenantList.value = data.voList;
    if (tenantList.value != null && tenantList.value.length !== 0) {
      loginForm.value.tenantId = tenantList.value[0].tenantId;
    }
  }
};

/**
 * 第三方登录
 * @param type
 */
const doSocialLogin = (type: string) => {
  authBinding(type, loginForm.value.tenantId).then((res: any) => {
    if (res.code === HttpStatus.SUCCESS) {
      // 获取授权地址跳转
      window.location.href = res.data;
    } else {
      ElMessage.error(res.msg);
    }
  });
};

const userRegister = () => {
  router.push('/register');
};

const bindMFA = () => {
  // router.push('/bindMFA');
};

const goResetPassword = () => {
  // router.push('/resetPassword');
};

onMounted(() => {
  getCode();
  initTenantList();
  getLoginData();
});
</script>

<style lang="scss" scoped>
@import url('./login.scss');
</style>
